320140622 has 4 divisors (see below), whose sum is σ = 480210936. Its totient is φ = 160070310.

The previous prime is 320140621. The next prime is 320140649. The reversal of 320140622 is 226041023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 226041023 = 13 ⋅17387771.

It is a junction number, because it is equal to n+sod(n) for n = 320140594 and 320140603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320140621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80035154 + ... + 80035157.

It is an arithmetic number, because the mean of its divisors is an integer number (120052734).

Almost surely, 2^320140622 is an apocalyptic number.

320140622 is a deficient number, since it is larger than the sum of its proper divisors (160070314).

320140622 is a wasteful number, since it uses less digits than its factorization.

320140622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160070313.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 320140622 is about 17892.4738926734. The cubic root of 320140622 is about 684.0905557637.

Adding to 320140622 its reverse (226041023), we get a palindrome (546181645).

The spelling of 320140622 in words is "three hundred twenty million, one hundred forty thousand, six hundred twenty-two".